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I'm a well-known mainframe performance guy, with almost 30 years of experience helping customers manage systems. I also dabble in lots of other technology. I've sought to widen the Performance role, incorporating aspects of infrastructural architecture.
I'm a world-famous podcaster and screencaster (albeit VERY thinly spread). :-)

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It’s hard to write about test environments without feeling you’re insulting somebody.
That’s certainly true when it comes to performance tests. But I think that very fact is indicative of something:
It’s incredibly difficult to get it right.
Put another way, most environments are compromises. In recent weeks I’ve seen a number of customer situations where things... [More]